Mid-medulla Flashcards
Name this and state its function.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/252/080/q_image_thumb.png?1610025733)
Inferior cerebellar peduncle.
- Posture maintenance and balance.
- integrating proprioceptive sensory input with vestibular motor function.\
Name this and state its function.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/256/424/q_image_thumb.png?1610028324)
Dorsal efferent(motor) nucleus of Vagus.
- Provide input afferents pulmonary, digestive and cardiovascular, affecting blood pressure and blood gas levels.
Name this and state its function.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/256/800/q_image_thumb.png?1610028705)
Hypoglossal nucleus.
- Somatic efferent, innervating tongue musculature.
Name this and state its function.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/257/115/q_image_thumb.png?1610029099)
Hypoglossal nerve.
Name this and state its function.[5 marks overall].
Tract involved.
Pathway specific to function.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/257/685/q_image_thumb.png?1610029194)
Medial lemniscus.
- Second order neurons of Dorsal-column medial lemniscus pathway(DCML), of conscious proprioception.
- Spinothalamic information:
- caudal medulla*–>*thalamus*–>*somatosensory cortex.
Name this.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/258/272/q_image_thumb.png?1610029746)
Fourth ventricle.
Name this and state its function.
Nerves involved.[3 marks].
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/258/367/q_image_thumb.png?1610380641)
Medial longitudinal fasciculus.
- Integrating eye movement and the head.
- involves:
oculomotor, trochlear and abducens.
Name this and state its function.
Neurotransmitters involved?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/259/331/q_image_thumb.png?1610031390)
Nucleus Tractus solitarius(NTS).
- Generates peristaltic activity of the gastrointestinal tract during swallowing.
- Release of inhibitory(GABA) and excitatory(Glutamate).
- controls motor pattern.
Name this and state its function.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/260/427/q_image_thumb.png?1610031518)
Inferior olivary nucleus.
- Fine motor and co-ordination. project to the ICP( to Cerebellar cortex and deep cerebellar nuclei).
Name this.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/261/213/q_image_thumb.png?1610032724)
Medial vestibular nuclei.
Name this.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/262/356/q_image_thumb.png?1610032792)
Inferior vestibular nucleus.
Name this, state its function, divisions and pathway.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/262/537/q_image_thumb.png?1610033182)
Pyramidal tract.
-
Composed of :
- Corticospinal + Cotricobulbar tracts.
- Descending tract:
- Carrying motor fibres from cortex—>spine/brainstem.
Voluntary control.
Name this and state its function within its 2 parts.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/263/057/q_image_thumb.png?1610033640)
Olive.
Inferior: integrates motor and sensory function
- Relays between spine and cerebellum.
Superior: sound localisation.
- Sound localisation, and relay between cochlear nuclei and inferior colliculi.
Name and state its function in each hemisphere.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/332/264/164/q_image_thumb.png?1610035375)
Arcuate fibres.
Left hemisphere:
- Language processing.
Right hemisphere:
- visuospatial processing.